Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
Category
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
Sea Glass
Man-made silicate glass
Opalite
Man-made opalized glass
Goldstone
Aventurine Glass (Man-made)
Slag Glass
Amorphous Silicate (Man-made)
Ring with an Orange Inlay
N/A (Man-made object)
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Opalite
Synthetic Opalite Glass / Opalized Glass
Sea Glass
Man-made vitreous material
Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Moqui Marble
Iron Oxide Concretion (Limonite/Hematite over Sandstone)
Magnetic Hematite (Man-made)
Iron Oxide (Fe2O3) with Barium-Strontium Ferrite
Slag Glass
Vitreous Silicate Residue
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
Opalite
Synthetic Glass (Silica-based)
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
Blue Obsidian (Cullet Glass)
Silicon Dioxide (Amorphous Glass)
Sea Glass
Man-made silicate glass weathering product
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Brick fragment (Man-made material)
N/A (Fired clay)
Metal Alloy (Likely Pewter or Sterling Silver)
Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).
Concrete
Hydrated Portland Cement Aggregate Composite
Blue Obsidian
Volcanic Glass (SiO2 with inclusions)
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Aura Quartz (specifically Titanium Aura Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)
Pyrite Concretion (Grapestone)
Iron Sulfide (FeS2) Concretion
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Opalite
Synthetic Glass (Simulated Opal)
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
Aura Quartz
Titanium or Gold bonded Silicon Dioxide (SiO2)